SiBE041401E Tips for Servicing
Trial Operation and Field Settings 104
1. Tips for Servicing
1.1 Pump Down Operation
Outline In order to protect the environment, be sure to conduct pump down operation when relocating or
disposing of the unit.
Detail 1) Remove the valve caps from the liquid stop valve and the gas stop valve.
2) Carry out forced cooling operation.
3) After 5 to 10 minutes, close the liquid stop valve with a hexagonal wrench.
4) After 2 to 3 minutes, close the gas stop valve and stop the forced cooling operation.
Refer to forced cooling operation below.
1.2 Forced Cooling Operation
Gas stop valve
Valve cap
Close
Liquid stop valve
Service port
(R13628)
Hexagonal
wrench
Item Forced Cooling
Conditions The forced cooling operation is allowed when both of the following conditions are
met.
1) The outdoor unit is not abnormal and not in the 3-minute standby mode.
2) The outdoor unit is not operating.
Start The forced cooling operation starts when any of the following conditions are fulfilled.
1) Press the forced cooling operation ON/OFF button (S1W) on the indoor unit for 5
seconds.
2) Press the forced cooling operation ON/OFF button (SW1) on the outdoor unit
within around 3 minutes after power is supplied with standby electricity saving
function turned off.
Command
frequency
20/25/35 class: 58 Hz
50 class: 66 Hz
End The forced cooling operation ends when any of the following conditions are fulfilled.
1) The operation ends automatically after 15 minutes.
2) Press the forced cooling operation ON/OFF button (S1W) on the indoor unit again.
3) Press the ON/OFF button on the remote controller.
4) Press the forced cooling operation ON/OFF button (SW1) on the outdoor unit.
Others Protection functions have priority over all other functions during forced cooling
operation.
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